Colorado National Speedway

Dacono is a home rule municipality located in southwestern Weld County, Colorado, United States. The city population was 6,297 at the 2020 United States Census, an increase of +51.66% since the 2010 United States Census. Dacono is a part of the Greeley, CO Metropolitan Statistical Area and the Front Range Urban Corridor.

Saint Vrains is a ghost town in Weld County, Colorado, United States.

Puritan is a former unincorporated community in Weld County, Colorado United States.The community took its name from the nearby Puritan Coal Mine, so named for the high quality of its coal.

Erie High School is the sole high school in the town of Erie, Colorado. The school is a part of the St. Vrain Valley School District. The school was formed by the separation of Erie Middle and High School. Currently there are over 1400 students attending the school. It is anticipated that each Freshman class will now enter Erie High School with around 400 students. The building was designed to honor the town of Erie's mining history, as the color scheme is of the color of coal, though the school colors are tiger orange and black. The school opened its doors in 2005 and was later expanded to accommodate enrollment growth in 2018.

Dick is an extinct town in Weld County, in the U.S. state of Colorado.

The Town of Frederick is a Statutory Town located in Weld County, Colorado, United States. The town population was 14,513 at the 2020 United States Census, a +67.22% increase since the 2010 United States Census. Frederick is a part of the Greeley, CO Metropolitan Statistical Area and the Front Range Urban Corridor.

Frederick High School is a public high school in Frederick, Colorado, United States, about 40 miles north of Denver. It is a four-year public school serving grades 9 through 12. It is one of the largest schools in the St. Vrain Valley School District, with an enrollment of around 1,300 in 2022.The school is part of the St. Vrain Valley School District. In addition to Frederick, the school primarily serves students from the nearby communities of Firestone and Dacono. The school colors are Navy Blue and Gold and the mascot is the Golden Eagle. The Golden Eagle became the school's mascot after Colorado Senate Bill 21-116 was passed, which levied severe financial penalties for public schools in the state with Native American mascots (the school's mascot was formally the Warrior). The current building is the third iteration of Frederick High School in Colorado. The original Frederick High School was established in 1907 but closed in 1961 due to school consolidation. The second school, located at 600 Fifth Street, opened in 1979 and was a middle-high school serving grades 6 through 12. The middle and high schools separated in 2012, with Frederick High School moving into its current location at 5690 Tipple Parkway and the former high school becoming Thunder Valley Middle School. The theater department of the school has gained recognition in Colorado and beyond. The International Thespian Society Troupe 4391, which is a part of the department, has achieved several notable accomplishments, including a student named Thomas Beeker winning a Jimmy Award. The department has also been invited to showcase its productions at various events, such as the Colorado Thespian Conference, where they performed Newsies at the Buell Theater. The school hosts a biomedical science magnet program as well as a PTECH program, which pairs students with local tech firms and college coursework to earn them an associate's degree at graduation. The school is also known for its sports teams regularly making playoffs.In the past Frederick’s rival has been Erie High School, but presently Fredrick’s primary rival is Mead High School.

Serene, Colorado is an extinct coal mining company town that was owned by the Rocky Mountain Fuel Company. Serene was located at the site of the Columbine Mine and had company housing and a coal preparation plant. The Serene post office operated from January 25, 1923, until August 31, 1942. Serene was the site of the Columbine Mine Massacre on November 21, 1927.

The Columbine Mine massacre, sometimes called the first Columbine massacre, occurred in 1927, in the town of Serene, Colorado. A fight broke out between Colorado state militia and a group of striking coal miners, during which the unarmed miners were attacked with firearms. The miners testified that machine guns were fired at them, which the state police disputed. Six strikers were killed, and dozens were injured.

Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Aurora, and Castle Rock. Area code 303 is the original area code, while area codes 720 and 983 were added (1998, 2022 respectively) to form an overlay plan for the area, meaning that the same geographic service area is served by all area codes and that ten-digit dialing is required for all calls made within the service area.

The Denver Basin, variously referred to as the Julesburg Basin, Denver-Julesburg Basin (after Julesburg, Colorado), or the D-J Basin, is a geologic structural basin centered in eastern Colorado in the United States, but extending into southeast Wyoming, western Nebraska, and western Kansas. It underlies the Denver-Aurora Metropolitan Area on the eastern side of the Rocky Mountains.

The Town of Erie is a Statutory Town located in Weld and Boulder counties, Colorado, United States. The town population was 30,038 at the 2020 United States Census, a +65.64% increase since the 2010 United States Census. At the 2020 census, 17,387 (58%) Erie residents lived in Weld County and 12,651 (42%) lived in Boulder County. Erie is a part of the Denver-Aurora, CO Combined Statistical Area and the Front Range Urban Corridor. Erie is located just west of Interstate 25, with easy access to Interstate 70, Denver International Airport and Colorado's entire Front Range. Erie's Planning Area spans 48 square miles (120 km2), extending from the north side of State Highway 52 south to State Highway 7, and between US 287 on the west and Interstate 25 to the east. Erie is approximately 35 minutes from Denver International Airport, 25 minutes from Denver and 20 minutes from Boulder. The town was named after Erie, Pennsylvania, the former home of early settler Richard Van Valkenburg.